Type-writing machine.



m. M. w m H .f 7 2, m. E m w A 2 D E m1 N E M P RNQ .......H.. OI RCA BAM MMA NGD ENm KII CTT TlTlN @Rm .WM nnw .PL GYN TA No. 854,505. l PATENTED 5115.27, 1907.

' G. G. BLIGKBNSDERFER.

TYPE WRITING MACHINE.' APPLICATION FILED AUG.10, 1905.

' 2 SHEETS-SHEET 2.

UNITED STATES PATENT OFFICE.

TYPE-WRITING MACHINE.

v Specification of Letters Patent.

Patentedsug. 2"?, 19o?.

Application filed August 10,1905. Serial No. 273,607.

To all 'whom 'it concern:

Be it known that 1 GEORGE C. BLICKENSDRFER, a

citizen of the. United States, residing at Stamford,. county of Fairfield, and State of Connecticut, have invented certain new and useful Improvements in 'lype- Writing Machines, fully described and represented in the following specification and the accompanying drawings, forming apart of the same.'

This invention relatesto certain improvements in typewriting machines, and has generally for its object to improve the details of construction of said machines, the scope of the invention relating more particularly to the mechanism for operating and controlling the carriage. l

With thisgeneral object and other specific objects in view, the invention consists in certain construe tions and incertain parts, improvements and combinations as will be hereinafter fully described and pointed out in the claims hereunto appended.

Referring to thedrawings-Figure l is a side elevation of so' much of the operating mechanism of atypewriting machine as is necessary to' an understanding of the invention. Fig. 2 is a 'rear elevation of part .shown in Fig. 2. y Figs. 4,5 and 6 are detail views, `illustrating the constuction of certain swinging blocks employed in the best form of construction. Fig. 7 is a detail view illustrating a mechanism for giving the carriage a movement in a direction reverse to the printing movement. Fig. 8 is a detail view illustrating a part of the mechanism for giving the carriage runningV movements in both directions. detail views, and Fig. 12 is a detail view illustrating the step by step carriage advancing mechanism.

'Ihe machine selected to illustrate a practical application of the invention is a power machine of the Blickensderfer type. i l

In the drawings, the bed plate of the machine is marked 1, this plate being supported, as is usual, on suitable feet 2. :The bed sustains by means of standards 3, or in any other suitable manner, a top plate 4 on which the carriage is mounted.

The carriage construction may be of any approved type. That selected to illustrate the invention embodies a pair of parallel rods 5 connected by cross pieces 6, these rods'l being supported in grooved wheels 7 mounted on studs 8 rising from the top plate 4. The impression roll of the carriage is indicated at 9, this roll being carried by side pieces 10 which are in turn supported by cross-pieces 6 before referred to. The

carriage construction is more or less diagrammatically illustrated, it not being necessary to an understandingof the invention to fully illustrate the details thereof. r

Figs 9, 10 and 1l are In the construction shown, Ameans are provided for giving thecarriage a running movement, that is, a continuous movement as distinguished from a step by step movement. In the best construction, this means `Will be of such a character that a running movement may be given the carriage in either direction. While the devices by which this running movement'is produced, may be varied, in the construction shown the carriage is provided witha rack 11 which is in mesh with a gear 12 mounted on a vertical shaft 13, this shaft being supported in the frame and carrying on its lower end a beveled gear-14 which is in mesh with two other beveled gears 15, 16. It is obvious that by driving one of the beveled gears 15, 16, the carriage will be given a running movement in one direction, and by driving the other gear, the carriage will be given a running movement in a reverse direction.

While the mechanism by which the driving of the gears and the vertical shaft,-when these features of construction are employed,to give the carriage a running movement, may be varied, in the construction shown, the gear wheel 15 is mounted on a stud 17 which also supports a friction wheel 18 to which the gear 15 is fast. 'Similarly the gear 16 is mounted on a stud 19 which also supports av friction wheel 20 to which the gear 16 is fast. These friction wheels 18 and 20. may be caused at proper times to engage with driving members, the driving member for the wheel 18 being a friction disk 21, and the driving member for the wheel 2O being the friction disk 22, these disks being mounted on a shaft 23 which, in the particularv construction shown, is the shaftof a motor which is conventionally .indicated at 24. In the best constructions this motor will be con-` tinuously driven so that the driving shaft and the driving members 21 and 22 will be constantly running.

The construction so far described is similar to the construction described in an application filed December 6,

. 1902, by George C. Blickensderfer, and serially numbered 134,104, which has been found to be an efficient mechanism for the purpose described. In the con.- struction shown in that application, however, the parts corresponding to the studs 17, 19 were mounted in a swinging block, this block being moved through suitable instrumentalities, including keys, to bring one or the other of the driven members or wheels 18, 19 into engagementwith its driving member. In other words, the carriage driving mechanism shown in that application, while it included a separate line of connections from each key to the block, had the block common to bothlines. The result of this was that when operating one key lever to swing the block a strain was set up on the other line of connections which limited the movement of the block and unless the adjustment was line, sometimes prevented a proper engagement of the wheels.

In the present construction the driving mechanism stud 19 is supported in a block, 27 also supported on the stud 26. In the particular construction shown, in order to stiffen and strengthen the construction and also to simplify it, the block 27 lies ina recess in the block 25, this recess' being formed by upper and lower members 28,

29, and this block -27 has an upward extending lip 30V which lies along the edge of this upper member 2 8, the member being chamfered off at 31'. The -block 27 ,has a similar chamfer, indicated by dotted line at 32 in Fig.

5, these chamfers permitting the blocks to swing. The

blocks have rearward extensions, that on the block 25 i being marked 33 and that on the block 27 being marked 34 (see Fig. 5) and betweenthese blocks is located a spring 35 which serves to keep the blocks in normal position, that is, in the position where neither of the driven wheels 18, 20 is in engagement with itsldriving member.

The sides of the block prevent the spring from throwing the blocks too far.' In the vparticular construction shown, the block 25 'is provided with an arm 36 and the block 27 is providedwith an arm 37. The arm 36 is con- 45, 46, this lever being a key-lever and bearing a key marked Left ln the particular construction shown, and for reasons which will hereinafter appear, the connection between the link 43 and the outwardly turned end 44, is made 1 by means of a sleeve 47- having a collar 48 against which the outwardly turned end 44 of the arm 45 of the lever bears, this sleeve being held in position by set nuts 49,

or in' any other suitable manner, and having a Washer 50 interposed between the nuts and the end of the sleeve. The levers 40-41 and 45-46 are, in the particular construction shown, journaled on a shaft 5l, though they might be mounted in any other suitable manner. This shaft 5l, it may be here remarked, may be a shaft forming a part of a tabulator mechanism if one is employed. If a tabulator mechanism is not employed, these levers may be supported in any suitable manner, but when thetabulator mechanism is employed, this shaft forms the best means for supporting the levers.

With the construction so far described, it will be seen that by operating the key marked Right, the block 25 will be swung; this moving the Wheel 18 into engagement with the wheel 2,1. The movement of the block will, therefore, through the connections heretofore described cause the carriage to be moved to the right, that is, in the direction opposite to that in which it moves (hiring the printing operation. By operating the key marked Loft, the block 27 will be swung,

this movement of the block, through the connections before` described, causing the carriage to move to the the printing operation.

In machines designed for certain.. classes of'work what is known as. the column stoppinggmechanism is left, that is, inthe direction in which it moves during having theirv initial letters in the same vertical lineor lines. `Such a mechanism may rbe advantageously employed in connection with machines provided with means for giving the carriage the running movements referred to, and .particular mechanism forgiving the carriage the running movement to the left, or inthe di'- rection which may be termed the printing direction.

When such a. column stopping-mechanism .is em' 4ployed, it may b e varied in construction.-

employed, this mechanism operating, as" is well-known,

The mechanism shown 'embodies a plurality of stopsi l52 mounted on and lmovable along a notched bar 53 connected to the carriage, the stops' being located inA the notches of the bar andvbeing held in position by a swinging bail 54. Coperating with these stops is `a stopping member or arm 55, this armbeing-mounted on one of lthe arms 56 of a bell-crank lever-56-57, this' lever being pivoted at 58 ytothe machine frame. The member 55 is normally held in the position illustrated in Fig. 2 by a light spring 59. The arm 57 of the bellcrank lever is connected tb a bent link 60 .pivotally connected at 61 to a lever 62 pivoted on the'shaft 5],

before described. The lever 62 has (see Figs. 9 to 1l) a lip 63 which underlies the arm 64 of a bell-crank lever 64-65, this lever'being a key-lever bearing a key, in the particular construction shown, marked Col and being pivoted on the shaft 51. It is obvious that by operating the key marked Col the column stopping mechanism will be operated and -themember 55 will be positioned so that it will be struck when the carriage moves by one of the stops 52.

While the movement of the carriage to -ca/use it to advance when the column stopping mechanism has been brought into position, may be produced -in any desirable manner, it will, in the best constructions, as has been heretofore indicated, be a continuous movement and be produced by the operation of the column stopping operating key, Yand the connections will be of such a character as to enable a movement of the carriage in the same direction as that produced by the column stopping key to take place without operating the column stopping member or arm.. 'i

In the particular construction shown, the arm 65 of the lever 64, 65 has an outwardly bent end 66, and the sleeve 47 passes through an opening in this outwardly bent end, the bent end resting against the washer 50 before referred to. The operation of the column stopping lever will, therefore7 -not only set the column stopping device, but also rock the block 37 and produce the running movement to the left before `referred to. It is also obvious that the depression of the left key will produce the same running movement without disturbing the column stop operating connections.

In the particular construction illustrated, the shaft 5l is also provided with an arm 67 through which the link 43 passes, so that the rocking of the shaft which is incidental to the operation of the tabulating mechanism, not herein claimed, will also produce this continnous running movement to the left.

The machine will be provided with a step by step advancing feeding device which, while it may be of any suitable character, in the best constructions will be of such a character as to leave the carriage entirely free, so that it may be moved in either direction. As

. shown, this movement is effected by means of a lever 68 pivoted in a rocking block 69, this block being mounted on4 a stud 70 which engages'a bearing 71 suitably supported on the frame of the machine and on the side of the machine opposite to that illustrated in Fig. 1. The pivot of the lever 68 is marked 72. This lever is provided with a bent toothed end, as shown, which engages the rack 11 before referred to. The lever is operated by means of a cam 73 mounted on a shaft 74 suitably supported in the machine. This cam has a second cam 75 on its periphery; As the shaft rotates, the disk first operates on the lever, rocking it at right angles to its pivot 72, this movement being permitted by the turning of the block 69 on its pivot 70. This movement of thelever brings its teeth into engagement with the teeth on the rack 11. When this engagement has taken place, the cam 73 comes into operation and rocks the lever on its pivot, thus advancing the carriage one space. After the feeding movement of the lever 68 has occurred, it is pulled out of engagement with the teeth in the rack 11 by means of a spring,lnot shown. This step by step carriage'advancing mechanism is not specifically herein claimed, the same being claimed in an application No. 181,265, filed Nov. 16, 1903, by Geo. C. Blickensderfer. A full description of specific means for mounting this lever and its various connected parts will be. found in said application, such description and illustration being omitted from this application as they are unnecessary to an understanding oi the invention, and in the interest of brevity.

It may happen inmoving the carriage to the left or printing direction, either by the step by step move-v ment or the running movement, that it will be carried a space or a few spaces too far. In the best constructions, therefore, means will be provided foi` giving the carriage a step by step movement to the right, that is, in a4 direction opposite to what has been termed a printing movement. While this may be effected in various Ways, in the particular construction shown, there is provided` a slide 76, this slide being mounted on the top of the top plate 4, this movement being permitted and guided by means of screws 77 coperating with slots 78, orsin any other suitable manner. This slide carries a pawl 79 piv- Oted to the slide at 80. This pawl coperates with a ratchet disk 81 mounted on the .shaft 13 before referred to. By operating this slide, the carriage may be jigged back a space or a number of spaces, if desired, the return movement of the slide after it has operated being conveniently produced` by means of a spring 82. To prevent an overthrow of the disk 8l the` slide is provided with a locking projection 83 which engages the teeth of the ratchet disk after the ratchet has been moved sufficiently to move the car` riage one space. While this jigging back of the carriage is important for the reason before stated, it is Changes and variations maybe made in the construction described for carrying the invention into effect; The invention is not, therefore, to be limited .to the details of construction hereinbefore de scribed and shown in the accompanying drawings.l

1. In a typew1iter,`the combination with a carriage, of means for giving it a running movement, a key and suitable connections for rendering said means operative, column stopping devices, a key and suitable connections for rendering said stopping devices operative, and connections between this key und the means for giving the carriage a running movement, whereby when the column stoppingr key is operated the carriage is given said running movement.

v2. In a typewriter, the combination with a carriage, of a driving mechanism by which the carriage may be given a running movement, said mechanism being norv mally disconnected from the carriage, key-controlled means for connectingsaid mechanism to the carriage, keycontro1led column stopping devices, and connections whereby the column stopping key connects 'the driving mechanism to the carriage.

3. In a typewriter, the combination with a carriage, of

a constantly running driving mechanism, normally inoperative key-controlled connections, key-controlled column stopping devices, and means whereby the operation of the column stopping key renders the connections between the driving mechanism and the carriage-operative.

4. In a typewriter, the combination with a carriage, of power operated key-controlled means whereby the carriage may be given a running movement in either direction, keycontrolled column stoppingl devices independent of said key-controlled menus, and connections whereby the operation of the column stopping devices causes a continuous movement of the carriage. i

5. In a typewriter, the combination with a carriage. of a driving mechanism, normally inoperative key controlled connections whereby the driver may give the carriage a running movement in either direction, key controlled column stopping devices, and means yvhereby the operation of the column stopping devices causes the driving mechanism to give the carriage a continuous movement.

6. In a typewriter-,the combination with a carriage, of a constantly running driving mechanism, normally inoperative key-controlled connections whereby the driver may give the carriage a running movement in either direction, key-controlled column stopping devices, and means whereby the operation of the column stopping devices causes the driving mechanism to give the carriage a continuous movement. i

l'-7. In a typewriter, the combination with a carriage, of a driving mechanism, a key and suitable operating con` nections for causing the driving mechanism to move the carriage in one direction, and a key and suitable operating connections for causing the driving mechanism to move the carriage in the opposite direction,`the operating connections for one key being independent of the operating connections for the other key.

8.. In a typewriter, the combination with a carriage, of a constantly running driving mechanism, a key and suitable' operating connections for causing-the drivmg mechanism to move the carriage inione direction, and a key and suitable operating connections for causing the driving mechanism to move the carriage in the opposite direction,

the operating connections for one key being independent' of the operating connections for the other key.

f). In a typewriter, thecombination with a carriage, of a key'and suitable connections for giving the carriage a movement in the printing direction, a key and suitable connections for giving the ,carriage a movement in the opposite direction, a key operated column stopping device, :ind connections whereby the operation of the key of said device causes the carriage to move in the printing direction.

10. In a typewriter, the combination with a carriage, of suitable driving mechanism, key operated connections whereby the driving mechanism is caused to move the carriage in the printing direction, key operated connections whereby the driving mechanism is caused to move the carriage in the opposite direction, key operated column stopping devices, and means whereby lthe key of said devices causes the driving mechanism to move the carriage in the printing direction.

11. In a typewriter, the combination with a carriage, o t a driving mechanism including a plurality of driving members, a pair of driving members normaiiy disengaged from the driving members, connections whereby one of said driven members drives the carriage in one direction and the other of said driven members drives the carriage in the opposite direction, swinging blocks one for each driven member by the movement of which the driven members are caused to engage the driving members, and keys and suitable connections for operating the blocks.

12. In a typewriter, the combination with a carriage, of u driving mechanism, a pair of keys, means including a line of connections from one of said keys whereby the driving mechanism is caused to drive the carriage in one direction, means including an independent line ot connections from the other key whereby the driving mechanism is caused to move the carriage in the opposite direction, key operated column stopping devices, and connections between the keys of said devices and one of the lines of connections.

Li. In a typewriter, the combination with a' carriage, ot' a driving mechanism including a plurality of drivingI members, a pair of corresponding driven members, means whereby one of said driven members drives the carriage in one direction and the other driven,member drives the carriage in the opposite direction, a pair cf keys, onefor each driven member, whereby each of said members is thrown into engagement with its driving member, vkey operated carriage stopping devices, and connections between the key for said devices and one of the driven members.

l-l. In a typewriter, the combination with a driving mechanism including a pair of driving members, of a pair of driven members normally disconnected from the driving members, means ,including swinging blocks, one for each driven member, whereby each driven member is caused to engage with its driving member, keys and suitable connec- 'tions for swinging the blocks, key operated carriage stopping devices, and connections between the key for said devices and one o f the blocks.

15. In a typewriter, the combination with aA driving shaft, of a pair ofdriving wheels mounted thereon, a pair of driven wheels normally disconnected from the driving wheels, a carriage driving shaft, connections whereby either of the driven wheels may drive said shaft, a pair of key-controlled swinging blocks one for each driven wheel,

`whereby each driven wheel may be caused to engage its driving wheel, key operated carriage stopping devices, and connections between the key for said devices and one ofthe blocks.

16. In a typewriter, the combination with a carriage, of

a step by step carriage advancing mechanism normally dis connected from the carriage, wherebythe carriage is free to move in either direction, and means also normally disconnected from the carriage1 for giving the carriage a `step by step movement in a direction opposite to that in which it is moved by the step by step advancing mechanism.

17. In a typewriter, the combination with a carriagenormally free to move in either direction, of means for giving it a step by step advancing movement, means for giving it a running movement in the same direction as the step by step advancing movement, and means for giving it a step by step movement in the reverse direction.

18. In atypewriter, the combination with a carriage, of means for giving the carriage a step by step advancing movement, a motor driven gear wheel, a rack on the carriage with which the gear wheel engages, and means for operating the gear wheel to move the carriage in a directionopposite to that given it by the step by' step advancing means.

19. In a typewriter, the combination with a carriage, of means for giving the carriage a step by step advancing movement, a motor driven gear wheel, a rack on thecarriage with which the gear wheel engages, and a pawl and ratchet mechanism for operating the gear wheel to move the carriage in a direction opposite to .that given it by the step by step advancing means.

20. In a typewriter, the combination with a carriage, of motor operated means including suitable gearing for giving the carriage a running movement in the direction in which it moves when printing, and means coperating with the gearing forgiving the carriage a step by step movement in the opposite direction.

21. In a typewriter, the combinstion'with a carriage, of motor operated means for giving it a step by step advancing movement, key-controlled gearing including a rack and pinion for giving the carriage a running movement in the same direction as the advancing movement, and means cooperating with the gearing for giving the carriage a step by step movement in the reverse direction.

22. In a typewriter, the combination with a carriage, of a feeding mechanism for giving the carriage a step by step movement, said mechanism being normally disconnected from the `carriage whereby the carriageis free to move in either direction, and means including gearing and a suitable slide mounted on the machine frame and normally disconnected from the gearing for moving the carriage in the opposite direction.

In testimony whereof, I have hereunto set my hand, in the presence of two subscribing witnesses.

GEORGE C. BLICKENSDERFER.

Witnesses:

A. WHITE, J. A. Gimvns. 

